In this final paper author will present the importance of using EU funds, Croatian possibilities for using EU funds through the pre-accession period and after accession to the European Union, how to access EU funds, the structure of EU funds, main characteristics of individual types of EU funds. At the same time, the paper presents the legislative framework of the Republic of Croatian for the implementation of projects through EU funds, the rules applicable to individual types of EU funds, and the process of project preparation. The basis for quality and successful project are professionally trained people who have information, experience and practical knowledge about the notification procedures and the preparation of documents for competition.